I find this debate about babies funny. In the spiritual realm, you can take any shape you like. A spirit full of purity and innocence will probably appear as a child since it is its natural form. A more heroic spirit might appear as an angel knight.

If you read the Bible with a closed mind and a closed hearth, the connection with the divine realm cannot be attained. Open the gates of the mind and the hearth, then read Scripture. This is the secret of the Ark... the Ark is inside of you, in the Temple. You will feel that the Message inside the form (the letters) is alive. If you make the connection (between the two kerubim), you will be receiving a Healing Spirit. Let Love and forgiveness come inside your tent. Receive the Messenger and listen to Wisdom. The Bible is more than just a book.

Debating about wheter there are adults or children in Heaven is unimportant and serves only to create divisions and pride, suspicion inside the faithful in Christ. If my faith is in Christ, I have total confidence that He will lead me to the abundance of eternal life. In what form ? I don't know. But if I look at the Beauty emanatiing from Him, I suspect that I should be ok.