A recent comment from the Lectures on Faith post stated,
I think some assume that in a vision one can distinguish a spirit from a flesh and bone body. Having never had a vision, I don’t know if that is true. (Perhaps a wheat and tares poll would shed some light.)
Actually, if you take it seriously (which is difficult for me to do, admittedly) there is evidence that in LDS theology a spirit body is visually indistinguishable from a physical body, otherwise the handshake test in d&c 129 would be different.
1 There are two kinds of beings in heaven, namely:Angels, who are resurrected personages, having bodies of flesh and bones—
2 For instance, Jesus said: Handle me and see, for a spirit hath not flesh and bones, as ye see me have.
3 Secondly: the spirits of just men made perfect, they who are not resurrected, but inherit the same glory.
4 When a messenger comes saying he has a message from God, offer him your hand and request him to shake hands with you.
5 If he be an angel he will do so, and you will feel his hand.
6 If he be the spirit of a just man made perfect he will come in his glory; for that is the only way he can appear—
7 Ask him to shake hands with you, but he will not move, because it is contrary to the order of heaven for a just man to deceive; but he will still deliver his message.
8 If it be the devil as an angel of light, when you ask him to shake hands he will offer you his hand, and you will not feel anything; you may therefore detect him.
9 These are three grand keys whereby you may know whether any administration is from God.
That brings up our poll questions.