"All the water fallen from the sky goes to the sea, similarly salutations to all the gods reaches to the one Lord Shiva".

"Akashat patitam toyam sagaram prati gacchati, sarva deva namaskaram shivo prati gacchati" 
"All the water fallen from the sky goes to the sea, similarly salutations to all the gods reaches to the one Lord Shiva". Yes, Offerings made to Krishna/ Vishnu Actually Goes to Lord Shiva. Due to the differences in individual dispositions, people follow different paths, but he is the only destination of all of them, just as the sea is the destination of all the waters! From Mahabharata we learn that Arjuna used to worship Vasudeva every night with offerings. When he and Krishna went to Kailash, the abode of Lord Shiva, Arjuna found that whatever offerings he had made to Krishna, everything was found offered at the feet of lord Shiva. Just As pouring of water at the root of a tree nourishes all the branches, by pleasing Rudra, through Sri Rudram japa, all devatas are pleased. One attains Bhukti, enjoyments of life, and Mukti, freedom from the bondage of births-deaths cycle, by chanting Sri Rudram with devotion. Among all sources of knowledge the Vedas are supreme. In the Vedas, Sri Rudram is supreme. In the Rudram, the Panchakshri mantra Namah Shivaya, is supreme and in Panchakshri mantra itself, the two syllables 'Shiva' is supreme! Worshipping Lord Shiva, watering the roots, is identical to worshiping all gods combined together, like watering the branches, leaves, stem.‪ And the other way round it is stated that when one worships Sri Krishna, who is Lord Vishnu in reality, the worship goes to Lord Shiva only. Rig Veda clearly states that there is only one God whom we call by various names "Ekam Sat Viprah bahudha vadanti". And that one single, non-dual god who appears as many forms is none other than Shiva! Many paths to the same goal ~ One Supreme! Shiva and Only Shiva!! Love, light & Peace ~ all glories to Shiva ~ Shivoham Shivoham ~ Har Har Mahadev!!!