The happiness derived from each of the five senses – hearing, touch, sight, taste, and smell – depends upon external objects and lasts as long as the object of happiness is around. In other words, when the sense object is gone, happiness is also gone. An example will make this clear. Suppose you are listening to a melodious sound. What happens when the sound is no more? Your happiness from that sound is also no more! Similarly, the happiness that comes from seeing a beautiful form depends on that form. As long as the form is there, happiness is there. If that form disappears, happiness also disappears.
However, the bliss derived from meditation on the innermost being does NOT depend on any external object/outer condition. This being so, the bliss of meditation never disappears. Bliss independently arises from within the being/Spirit, not from the other/external. Bliss is your very nature.
Now you can see how meditation is far superior to happiness derived from the five senses- hearing, touch, sight, taste, and smell.