If you keep lemon juice or tamarind juice in a golden cup, it is not spoiled or tainted. If you keep it in a brass or a copper vessel, it gets spoiled and becomes poisonous. Even so, if there are some Vishaya Vrittis or sensual thoughts in the pure mind of a person who practices constant meditation, they will not pollute the man and induce Vikara or passionate excitement. But if there are sensual thoughts in persons with impure minds, they cause immediate excitement in them when they come across sensual objects.
If you keep lemon or tamarind juice in a golden cup it will not spoil,if you keep those juices in a brass or copper cup they will become poisonous.
The same way if a man with a pure mind has sensual thoughts they will not disturb him,but if a man with a imure mind has sensual thoughts they will wreck havoc
