A lot of people, especially atheists, look for proof that God exists. What they are really looking for, are the existence of deities. And the transfer of some Shakti or energy or supernatural power aka siddhis to them or those they know. This will finally “prove” to them the existence of a higher power.
But the existence of a higher power is already obvious no?
Look at creation. Can any one species on this planet, either alone or collectively build all of creation? Nope. Even the starting point would have to be to use creation itself to create. So, disqualified before the game even starts!
Even amongst us, each one of us already has siddhis. Compared to someone who is deaf or blind at birth, those who can hear or see are surely blessed with siddhis. Just the ability to breathe and be alive is a siddhi! Even beyond that, some people have outstanding oratorical skills, or acting skills, or cooking skills, or math skills, or soft skills and so on. These are all siddhis only. If we can devote ourselves to our ishta devatas in gratitude for what we are already good at, then more will come, but it won’t matter, because the mind will already be pure.