Is Holy Supper accdg. to Bro. Eli's teaching is not literal.

All Christian denominations including Manalism conduct their Holy Supper of the Lord in a literal way where a cup of wine, a cracker and a host is shown while conducting it.

but accdg. to Bro. Eli, this is not biblical because Holy Supper is spiritual where bread is the Gospel and not a host or a cracker and the cup of wine is not a literal cup of wine but a cup of suffering.

Does Bro. Eli said is true or just inventing his own teachings that came from his mind?

What is your proof that ALL Christian denominations conduct Holy Supper in a literal way?

Assuming that it is literal, those denominations conducting must:
1. Do it during the first day of the feast of unleavened bread.
2. Have the literal bread broken by Christ himself.
3. ALL be eating the same [literal] bread, by implication from I Corinthians 11:21.
4. ALL be drinking in that same [literal] cup.
5. Considerations should be made before eating the bread and drinking in the cup. If he thinks that he is not worthy, he should not take it, as per I Corinthians 11:27-29.