Sometimes we feel like orphans. I know at least I do, having lost both my mother and father. I'm looking at this passage while facing the loss of a good friend, Peter Lendrum. Even though we will not see him any longer on this earth, there is a part of him in us and us in him. I think that part is the love we shared. Since God is love, that love is ever lasting. The memories we made and the love we shared are eternal. I also get solace from verse 29 where Jesus says "I am leaving you a gift - peace of mind, do not be troubled or afraid."
John:15:15-30
Jesus Promises the Holy Spirit 15 “If you love me, obey[d] my commandments. 16 And I will ask the Father, and he will give you another Advocate,[e] who will never leave you. 17 He is the Holy Spirit, who leads into all truth. The world cannot receive him, because it isn’t looking for him and doesn’t recognize him. But you know him, because he lives with you now and later will be in you.[f] 18 No, I will not abandon you as orphans—I will come to you. 19 Soon the world will no longer see me, but you will see me. Since I live, you also will live. 20 When I am raised to life again, you will know that I am in my Father, and you are in me, and I am in you. 21 Those who accept my commandments and obey them are the ones who love me. And because they love me, my Father will love them. And I will love them and reveal myself to each of them.”
22 Judas (not Judas Iscariot, but the other disciple with that name) said to him, “Lord, why are you going to reveal yourself only to us and not to the world at large?”

23 Jesus replied, “All who love me will do what I say. My Father will love them, and we will come and make our home with each of them. 24 Anyone who doesn’t love me will not obey me. And remember, my words are not my own. What I am telling you is from the Father who sent me. 25 I am telling you these things now while I am still with you. 26 But when the Father sends the Advocate as my representative—that is, the Holy Spirit—he will teach you everything and will remind you of everything I have told you.

27 “I am leaving you with a gift—peace of mind and heart. And the peace I give is a gift the world cannot give. So don’t be troubled or afraid. 28 Remember what I told you: I am going away, but I will come back to you again. If you really loved me, you would be happy that I am going to the Father, who is greater than I am. 29 I have told you these things before they happen so that when they do happen, you will believe.

30 “I don’t have much more time to talk to you, because the ruler of this world approaches. He has no power over me, 31 but I will do what the Father requires of me, so that the world will know that I love the Father. Come, let’s be going.