"When a pupil sends a thought of devotion to his Master, the slight flash which he sends produces an effect like the opening of a great valve, and there is a tremendous downflow of love and power from the Master. If one sends out a thought of devotion to one who is not an Adept, it becomes visible as a fiery stream going to him; but when such a thought is directed by a pupil to his Master, the pupil is immediately deluged by a stream of fiery love from the Master. The Adept’s power is flowing outwards always and in all directions like the sunlight; but the touch of the pupil’s thought draws down a prodigious stream of it upon him for the moment."
January 1, 1970
https://en.wikiquote.org/wiki/Masters_of_Wisdom_(Theosophy)