Dear Larisa I do research as You do :) I will look what lays under same rock many times, from different angels. If Maria Thun did not question those days dogma You would never have planting calender! Maria was not the only one who made in those years planting calender. But hers is the one that reached us! Her heritage should be followed and developed further - it is not a closed book :). There are many research that prove different thing then what Maria said about effect of Perigee. I just gave You a link to one of them. Of course in the 6th lecture of Agriculture course - lets state few remarks from there, Steiner was talking also about that there could be too strong Moon influences. Steiner emphesized that water is mediator that is awaken and the Earth itself by these Moon influences. Wet conditions will help Moon forces to enter Earth too strongly making Earth too much alive that will result in seeds becoming "soil for other organisms" like fungi :) So the problem is related to quantity of water. On the other hand the best time to saw seeds is few days before full Moon if it is raining fungi will thrive isn´t it? I am sorry if my writing looks like criticizing life long work of Maria Thun. On contrary I have great respect and gratitude for everyone who honestly sacrified their lives for biodynamic agriculture. And I have great respect for Your group that is far away in Siberia and I would like You to know that work, meeting and writings of Your group has impact somewhere else in the world.