This video from the "Memories of Srila Prabhupada" series deals with the topic of pancaratrika vidhi and bhagavata vidhi, the rules and regulations of deity worship and Lord Caitanya's programme of chanting, dancing, feasting and philosophy. Srila Prabhupada explains that you can get along without the pancaratrica vidhi in this age if necessary but you cannot get along without the bhagavata vidhi. The sankirtan will be all you need. But do not preach like this because many are attached to the deities in a very sentimental way, which is helping them, and they may mistake it that you are criticising the deity worship as less important or unimportant. The rules and regulations are there because you have no self control.