Herkis heard the call of God to be a JV summer intern in 2015. After that, he went to be a volunteer in Exit tour. Herkis’ heart broke for Estonian youth who don´t know God. In 2016, he joined KOMA, Josiah Venture’s partner organization in Estonia. He is a team member of English Camps and also co-leads the Exit ministry there. Herkis is an active member of the youth work in a local church in Tallinn and feels that God has invited him to be just where he is at this moment - serving as a full-time missionary in Estonia.