If think that doubt is our best friend and our worse enemy.
Doubt will be with us for a while, depending on the karma we have created, and as a spiritual practiotioner, we need to learn how to deal with our doubt.
One thing that I have learned is to not just ignore it when doubt arise, because it may just rotten and get worse, I think it is best that we face our doubt, that we analyse it with logic, with knowledge, with experience and with the help of our friends in Dharma and those not in Dharma.
It is important that we learn to do that because the only way our Guru has to strengthen our faith is to put us on the edge, at a point were we can really test our faith, at a point where we are to face our doubts.
When we go through such experience and have established a stronger faith, doubts gets lesser, but if in this challenge we give in to doubt and let doubt win, then we loose up.
A Guru always takes a risk when pushing his students on the edge, a knowledgeable risk of course, but a risk. The risk of loosing a student to samsara, and it happens sometime.
Even without a Guru, we'll have doubts to deal with for a while.
I don't claim to be an expert, and I am not a good practitionner, but these are my tools that I put in motion when I experience doubt:
1. I recall Dharma teachings, or I open a Dharma book and read, or I watch a Dharma talk on you tube,
2. I do a puja,
3. I imagine what I would loose if I let doubt win over my mind,
4. I imagine what would I "gain" if I let confusion win,
5. If somehow, I think I would gain something good from letting my doubts win, I think: how "good" is that really? how long will that last?
6. I open my heart to a Dharma brother that I know is reliable and that can help and that I know I won't damage with my clouded thoughts,
7. I test a little bit the people that I know are not in Dharma (as a last resort).
This last point, to me, has proven to be very effective and very destructive too, for I have done this once only, and the very worldly construction I had built up in my mind as an alternative to my Dharma journey simply collapsed in a matter of 2 or 3 days, displaying in full force its fragility, un-reliability and lack of solid foundations. The very people I had targeted as being my support and friends to rely on if I was to let go of my Dharma journey and "rely" on samsara turned into enemies in a matter of a few days, in a matter of an hour and over years of friendship. Like a live display of the un-reliability of samsara for me to see with my own eyes!
Maybe it is thanks to my merit that it happens though, and maybe some of us do not have the merit to have samsaric "friends", unknowingly working for Mara secret services, simply destroyed by enlightened snipers... But, then, we simply need to look at our samsara friends and see what they do, where they go, what they engage into and analyse seriously.
I find that they only entertain themselves in escapes (that is if they have it "good" all right), holiday, movies, food, party nights, car collection, whatever collection, travels, drink, family, career, money, books, art, jokes, clothes, social recognition...
None of this is wrong in any way, but really, if that is all there is, then one must be real and recognize the value of this stuff for what it is: deceptive.
This does not mean that I "like" all my Dharma brothers and sisters, for sure there are some I like more than others, and some that irritate the hell out of me. Why like that? because I am not enlightened.
But the thing is this: I am there for them, they are there for me, because they know more, much more than anyone however successful in samsara.
And yes, I work with those I "like", those I don't "like" indifferently, and I learn even more with those that I don't like, I learn to apply patience, I learn to apply generosity, I learn to control my mind, I improve, I learn to love them. I learn to look at my short-comings, I can go to them and ask them to show me who I am, to show me how I treat people, they will hold a mirror for me so I can see the real me, the good practitioners will scold me out of compassion, they will even embarrass me to make me understand...
Now, these are real friends!
In fact, I am asking:
What do you gain from letting delusions fuel your doubts, for letting doubts cloud your mind and for letting go your Dharma journey? Where is this leading, to what state of mind, that what kind of experience...
What is there to gain? What is there to loose?
And: what do you gain from clearing confusion away, and get clear about what Dharma means, get clear about what kind of mind one's Guru displays, get clear about the opportunity at hand, get clear about HOW LONG that window of opportunity is to remain open?
What is there to gain? What is there to loose?
Then, at least, if you mind is not a mind of total faith, it must be one of intelligence, logic and analysis.
Doubt works from a basis of intelligence, logic and analysis but with a background of delusions and worldly concerns.
Faith works also from a basis of intelligence, logic and analysis but with an open mind, no bias, no pretense, no defensiveness, and with no other background than reality itself and as a whole.