Aavoh Sikh Satgur
Sri Guru Ramdas Ji Maharaj uses a beautiful metaphor to explain the greatness of the true Guru. In India, Ganga water is considered to be very pure and sacred. Hindus worship Ganga and they believe that bathing in Ganga purifies them of their sins.
Ganga starts from the Himalayas as a very small river but by the time it reaches Calcutta, it becomes a huge river; almost like an ocean. Its journey from Himalayas to Calcutta is very interesting. Many big and small rivers merge into Ganga and become Ganga. The famous river, the mighty Brahmputra too merges in Ganga. The beauty is that once a river merges into Ganga, its water too is considered sacred by the Hindus.
Jio meehi vut(h)ai galeeaa naaliaa ttobhiaa kaa jal jaae pavai vich surasaree surasaree milath pavithra paavan hoe jaavai
Guru Sahib in this pankiti makes it clear that water from ponds, rainfall, streams and other rivers that falls into Ganga, becomes part of Ganga and such water is as pure as Ganga.
eaeh vaddiaaee sathigur niravair vich jith miliai thisanaa bhukh outharai har saa(n)th tharr aavai
In the same way, whoever meets the true Guru who is without enmity, loses all worldly thirsts and gets peaceful from inside (just as Satguru is). In other words, Guru Ji is highlighting the Gurmat Principle that the worshipper becomes like worshippee (Waheguru). The worshipper gets the qualities of the worshippee.
Waheguru Ji Ka Khalsa Waheguru Ji Ki Fateh