there are latent powers in us of which we are unaware. To do
a work, how is one to know whether one is capable of doing
it or not?
How can one know whether one is capable of doing it or not! By trying. That's
the best thing. And if you do not succeed immediately, persevere. And
you must know that if a strong urge, a very strong urge to do something
comes to you, that means this work has something to do with you and
you are capable of doing it. But one can have powers which are so well
hidden that one has to dig long before finding them. So you must not
get discouraged at the first setback, you must persist.