Please note these are originally posted by Shri Murali Battar who is Archakar @ Srirangam Temple and with the help of Shri Raja Desikan, its explained in english also. I am just sharing the information to the bhakthas. Kindly revert for clarifications.
Some of the collections from the websites reg Salagrama..!
Chakra Shaligram represent milky way galaxy which is Vishnu of our universe. See the information from different Purana.
With Keshava in the form of Shaligrama sila reside all the devatas, asuaras, yaksas and the fourteen worlds. — Padma Purana
The Lord resides in many places in which he may be worshipped, but of all the places Shaligram is the best. —Garuda Purana
Any person who has seen Shaligram shila, paid obeisances to Him, bathed and worshipped Him, has achieved the results of performing ten million sacrifices and giving ten million cows in charity. — Skanda Purana – Hari-bhakti-vilas
“Merely by touching a shaligram one becomes freed from the sins of millions of births, so what to speak of worshiping Him! By Shaligram puja one gains the association of Lord Hari”. — Gautamiya Tantra
“Shalagramas do not require installation ceremony. When one begins the worship of shaligram, however he should start with elaborate puja using all articles. The worship of shaligram is the best form of worship, better than the worship of the sun.” — Skanda Purana
“All those holy rivers awarding moksha, such as the Ganga, Godavari and others, reside in the charanamrita (bathed water) of shaligram.” — Padma Purana
“Shalagrama should not be placed on the earth or ground and worshiped.” —Sammohana Tantra
“By taking the remnants of foodstuffs offered to shaligram, one will get the result of performing many sacrifices.” — Skanda Purana