Simple Present Tense

[philgcdr]

What does it mean exactly from the following page "the action is general" in relation to the simple present tense? Thank you, Philip.

http://www.englishclub.com/grammar/verb-tenses_present.htm

"We use the simple present tense when:

the action is general
the action happens all the time, or habitually, in the past, present and future
the action is not only happening now
the statement is always true"

[Franz]

the term 'the action is general' may refer to the general truth
e.g : the sun rises from east