https://www.samaya.nl/about-samaya/
By train it is 45 minutes and it is a direct connection from Schiphol to train station Driebergen-Zeist.
Buy train tickets from https://www.ns.nl/en/
Taxi from the train station Driebergen-Zeist. A special agreement has been arranged with a taxi company. You must request the taxi at least 24 hours before arriving to get the special rate.
Taxi Netherlands (Levon) +31 (6) 12587654
Please make arrangements directly with Levon and state that you are with the special group at Samaya. Verify the cost (per person) with him before you arrive. You can pay by credit card.