Here is an example of how the Supreme Personality of Godhead is all-good: Pūtanā came to kill Kṛṣṇa, but because He sucked her milk, she was immediately purified, and her dead body attained a transcendental quality. Her only business was to kill small children; she was only fond of blood. But in spite of being envious of Kṛṣṇa, she attained salvation because she gave her milk to Him to drink. So what can be said of those who are affectionate to Kṛṣṇa in the relationship of mother, who with great love and affection always serve Him, the Supreme Personality of Godhead and the Supersoul of every living entity?
It is concluded, therefore, that even a little energy expended in the service of the Lord gives one immense transcendental profit. This is explained in the Bhagavad-gītā: sv-alpam apy asya dharmasya trāyate mahato bhayāt. Devotional service in Kṛṣṇa consciousness is so sublime that even a little service rendered to Kṛṣṇa, knowingly or unknowingly, gives one the greatest transcendental benefit. The system of worshiping Kṛṣṇa by offering flowers from a tree is also beneficial for the living entity who is confined to the bodily existence of that tree. When flowers and fruits are offered to Kṛṣṇa, the tree that bore them also receives much benefit, indirectly. The arcana process, or worshiping procedure, is therefore beneficial for everyone.