Science tells us that every so-called human being emits a certain frequency, a certain vibration of different colours. Occultists call this an aura. And all of the auras emitted by individuals are basically the same. Some are more static, some are more rajastic, some are more tamas, some are more pure than others, but they're basically the same. Therefore, when you help the homeless, you are merging your vibratory force with theirs, and you are lifting yourselves up together to a higher frequency. This is because there's only one Self.
Now, the frequency vibration of the Sage is a hundred million times stronger than the human vibration. This frequency is called divine grace. Now can you see why it says in all of the highest scriptures that to be of service to the Sage is the highest sadhana you can perform? For when you are of service to the Sage you're mingling your aura with the sage's aura. And, since the sage's so-called form that emits an aura is a million times stronger than the human being's, Sage's vibrations, which is called divine grace, lifts up the human being to a high frequency and releases them from karmic influences and sets them free.
As long as you believe you are a human being you have to perform a service to each other, to everybody. When you awaken, you will be yourself, and you will be served. You will be compassion. You will be wisdom. You will be an embodiment of humility.
Sri Robert Adams