Well, reading symbols is a difficult task. They hide many meanings. We remain today with simple explanations: mamuli - a symbol - medium for communicating with ancestors.
Of course, every ikat is used for practical purpose.
Blankets are used for covering up on cool nights. Ikat is a kind of saddle.
The important deceased is shrouded in ikat, as well as some animals intended for slaughter on the day of the funeral.