Modern Kadampa Buddhism is a special presentation of Buddha's teachings for the modern world.
It is open to everyone whether Buddhist or not regardless of nationality, age or gender.
How to Build a Pure World
In general, an offering is anything that pleases the Spiritual Guides and holy beings. According to the Kadampa Geshes, a real Spiritual Guide is pleased not so much by offerings of material gifts or money as by his disciples practising his or her teachings purely. Therefore it is said that offering our spiritual practice is the supreme offering.
Great Treasury of Merit