1. When a person carries out his dharma well (dharma is the life's moral which a person has determined for himself). There can be difficulties on this path, but if we follow it firmly, then spiritual power will grow.
2. When mind (man) is nishthchal - pure, words (vachan) will be good, pure,
actions (karma) will be righteous.
And the power will be even greater, when everything: thoughts, words and actions will not differ from each other.
3. When carrying out the spiritual practice a disciple follows the Teacher's guidance. Someone is more successful at jap (chanting mantra), someone at seva (service). Teacher advises what is best for whom. If any matter, any work is fulfilled well, spiritual power will appear.
4. When a spiritually progressing person is concentrated on himself and is always honest to himself.
Some people look for the cause of everything that happens to them within themselves, others - in those around them. Who will progress spiritually more, who will have more spiritual power? The one, who is concentrated on himself, searches for reasons in himself and works on himself.
It is always necessary to monitor yourself: “Where do I go? What do I say? What is my man [mind] doing at the moment, what do I think? What do I do incorrectly now?”
When a person is honest to himself, to his atma (soul), then the light of God inside him will be even brighter. Then that inner power, which is called spirit, will grow and will help even more.
The spiritual power decreases when a person is immersed in the material and becomes dependent from it, when he is unable to manage without it.
If a person has something, but he does not depend on it, can use it correctly, then he preserves the spiritual power. Any material things are only tools.
You never need to take pride in your power. Ahankar (pride, ego) always leads to mistakes and reduces spiritual power.
To acquire spiritual power one needs to work a lot: carry out spiritual practice, follow his dharma, monitor his thoughts, words and actions. This is a tremendous job, but it is necessary.