Just as water from a well can be drawn by different methods, such as bucket and rope, Persian wheel etc. and then it is directed to irrigate a field and it goes nowhere else.
A traveller and a rain-bird may keep on sitting thirsty near a well but cannot quench their thirst without means to draw water from the well and therefore cannot assuage their thirst.
Likewise, all gods and goddesses can do something within their power. They can reward a devotee for his services only to that extent and that too of worldly desires.
But the complete and perfect God-like True Guru showers the spiritual pleasure-giving ambrosial nectar of Naam, the treasure-house of all the happiness and comforts. (The service of gods and goddesses is trivial in benefits whereas that of True Guru bless